Apparatus for molding artificial-stone blocks.



PATENTED JAN. 28, 1908. J. W. SHONE & J. N. RAUBER.

W. V. WHIT MORE & G. F. MILLER, EX EUUI'ORS OF J. W. SHONE, DEU'D- APPARATUS FOR MOLDINGARTIFIOIAL STONE BLOCKS.

APPLICATION FILED FEB.4, 1905. B ENEWED 0011171907.

2 SHEETS-SHEET 1 UNITED; STATES PATENT o FroE.

W. SHONE AND JOHN N. RAUBER, OF ROCHESTER, NEW YORK; WALTER V. WHITMORE a AND GHARLES'F. MILLER EXEGUTORS OF SAID SHONE, DECEASED.

To all whorl tit may concern: Bait known that we,-JAMEs lV. SHONE and JOHN N. RAUBER, of Rochester, in the county of Monroe'and State of New York, have invented cert-ain new and useful Improvements in Apparatus for Molding i-irtificiah. Stone Blocks and we do hereby declare the APPARATUS FOR MOLDING ARTIFICIAL-STONE BLOCKS.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed February 4. 1905. Serial No. 244.112. Ren wed October 11. 1907. Serial No. 396.943.

following to befa full, clear, and exact .description of the'saine, reference being had to the accompanying drawings, forming a part of this specification, and to the referencenumerals marked thereon.

Our present invention relates to devices employed for manufacturing artificial stone blocks and it has for its object to provide an apparatus intended primarily for forming blocks which from their nature and size are adapted to be molded in site although equally well adapted for making blocks of a different character.

7 Our invention has for its further object to provide such an apparatus for molding street gutters and curbs whereby these parts may be formed integrally and of any desired length.

To these and other ends the invention consists in certain improvements and combinations of parts, all as will be more fully eX- plained, the novel features being pointed out in the claims at the end of this specification.

In the drawings: Figure 1 is a top plan view of an apparatus constructed inaccordance 'with'our invention. Fig. 2 is a cross sectional view thereof taken on the line 2 -2 of Fig.1. Fig. 3 is a detail sectional view on the line 3 -3 of Fig. 1. Fig. 4 is a detail elevation of one end of one of the mold hoards. Fig. 5 is a detail sectional view similar to Fig. 2 illustrating the operation of 401 one of the locking devices and Fig. 6 is a detail sectional view on the line 6 6 of Fig. 2. v

Similar reference numerals indicate similar parts in the several figures.

in the present illustration of an apparatus embodying our invention we have shown a device adapted to be employed for molding heavy bloc s or monoliths which are formed in the position they are to occu y, such, for instance as combined gutter an curb stones for streets, or roads, and it is in connection with this form of block that the following description has particular reference although it will be understood that the same or equi va-- lent parts of th apparatus may be equally Well employed for manufacturing blocks or stones of a different character and intended for other'uses.

The apparatus consists of mold boards 1 and 2 adapted for formin or molding, the front and rear sides respec ively of the block. In the present instance the front face of the block, at the edge of the gutter bottom 3, is narrower than the face at the rear edge of the curb portion 4, so that the plane of its upper edge is below the plane of the to board 2.

Located between these planes an arranged between the boards 1 and 2 is a third board or riser'5 against which the inner face of the curb portion 4 is molded as shown particularly in Fig. 3. I

The means employed for temporarily supporting the boards 1 and 2 in operative position consists of plates 6 which are preferably formed of thin material and are adapted to are located near the ends of the apparatustheir upper edges also form supports for the ends of the board 5 while their vertically extending portionsyco'rresponding to the inner face of the curb, form stops against which .said board is securely held in a substantially vertical position by means of a suitable clamping device. The latter is preferably located centrally between the plates 6 and consists of an arm 9 which extends over the top of the board 2 and is provided with adownwardly extending end 10 supporting a threaded clamping bar 15 provided at its outer end with a handle 16 by means of which the clamping head 17 at its opposite extremity may be moved into engagement Wlththe v board 2. Secured on the arm 9 is a handle 18 which facilitates placing the device in position and subsequently removing it.

The ends of the plates 6 form shoulders against which the .boards 1 and 2 abut when held in operative positionby their locking devices which are supported onthe extremities of said plates and comprise vertically opcrating members, or. wedges, 19. One

f 6 they are I an operating bell crank lever. pivoted at 26,

edge. plate 20, on theboard, while the of each of the members engages a wear posite inclined sur ace 21 edge bears against an block 22 formed ona downwardly projecting rigidly secured to the extension 7-. In order to secure the members 19 in proper osition and to prevent'their removal from t e plate with the separated their respective arm per ends being provided with elongated apertures 23, receiving pins 24, on the arms .25, of

side portions embracing the other portion of which is providedwith a handle 27. p

Inbuilding walls, copings, street curbs or similar structures in which the blocks are arranged end to end the work may be facilitated and greater accuracy obtained by forming the molding boards so that their ends project beyond the division plates, the space included between the boards at one end of the apparatus forming a partial mold for the adjacent, or succeeding responding ends projecting at the opposite extremity thereof form guides by means of block, while thecorwhich the device maybe alined on the end of a previously constructed blockas will be seen in Fig. 1. I Y

The operation of the apparatus will now be readily understood, The ground, or other surface on which the block is to rest, having 7 been leveled or otherwise prepared, the apparatus, after its parts have been clamped or locked together, is placed in the desired position. The concrete mixture composed of cebeyond one of the plates 6.

"elevate the members or we being completed, the

the arms 25 and erated outwardly to rotate in Fig. 5. This movement unloclrs the boards and plates, permitting the latter to be drawn upwardly and removed from between the ends of the blocks, after which the space formed, as shown in Figs. 5 and 6 paratus as one of t or extension 7, their ups dges 19, as shown formerly occupied by them may be filled with liquid cement or other compound whichwill prevent the entrance of moisture into the space thus formed. The boards 1 and 2 being liberated may be withdrawn and carried forward to be set in position 'for molding another block, thepartially completed end of which serves to roperly position ,the apserted in the position it formerly occupied or else allowed to remain in such position, having been raised vertically only a sufficient distance to elevate the arms or-extensions 7 thereon above the upper edges of the boards 1 and 2 to permit the latter to be drawn long1-,

tudinally into their newposition;

' Obviouslyblocks of various sizes and contour can be readily manufactured by changing the shape or character of the mold boards and the line of work sired length in perfect alinement.'

We claim as our invention:

can be extended any de-' e plates 6 is either re1 n 1. In an apparatus for molding blocks, the

- combination with boards for forming the side faces of the block and plates arranged between the boards, of arms on the plates extending beyond the boards, levers journaled thereon and locking devices connected to said levers and'cooperating 2. Ina-n apparatus for molding artificial. stone blocks, the combination with mold boards for forming the side faces of a block and end plates having arms extending be of locking members emyond said boards, bracing the arms and levers pivoted on the latter each having one end engaging its rewith the boards;

spective locking member and the other end forming an operating handle.

I 3. In an apparatus for molding. artificial stone blocks, the. combination with mold boards for forming the side faces of a block and end plates having armsextending he yond said boards, of plates secured to the sides of the arms and extending above and below their respective arms, a locking member comprising side pieces bearing against each plate and a lever pivoted between the lates and having one end connected to the ocking member.

- JAMES w'. snore. JOHN N. RAUBER.

Witnesses: Y

G. WILLARD RIoH, F. N. HOWARD. 

